Rainford Precision Adds CEHS End Mills to Portfolio

Tool stability Rainford Precision present new milling line

2024-08-19 Source: Rainford 2 min Reading Time

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Cutting tool expert Rainford Precision is adding the new CEHS series of end mills to its portfolio. These end mills have been developed specifically to reduce chatter and improve precision and surface finishes in instances where other tools fail.

The Union Tool CEHS Series from Rainford Precision(Source: Rainford) — The Union Tool CEHS Series from Rainford Precision
(Source: Rainford)

The new CEHS tungsten carbide 4-flute end mills from Japanese cutting tool manufacturer Union Tool are ideal for manufacturers struggling to hit the ‘sweet spot’ with their high-end machining applications. Designed for machining everything from carbon and alloy steels to pre-hardened steel, cast iron, copper, titanium and heat-resistant alloys, the new CEHS series incorporates a 40-degree helix and a variable pitch design that is perfect for slot and standard milling. Union Tool has developed a new chip pocket that introduces an innovative large pocket design of the main flute that enhances swarf evacuation and eliminates the re-cutting of chips — extending tool life, machining performance and efficiency.

The Union Tool CEHS series has a h4 shank diameter tolerance of +0/-0.004 mm. To further enhance milling stability, the CEHS has a small relief surface that further promotes stability and prevents chatter — even when undertaking operations with long tool overhang and reduced machining stability.

According to the company, the micro-grain carbide, UT coating technology and 16-degree tapered shank design enable the 6 mm diameter CEHS tool to machine slots in unstable conditions with an increase in milling efficiency of 80 percent improvement when compared to conventional tools. The CEHS is capable of cutting at machining parameters of 5,000 rpm and 900 mm/min feed with a feed per tooth of 0.045 mm at a depth of 6 mm.

This high-performance range of end mills is available in diameters from 1 to 6 mm in 0.5 mm increments with additional diameters from 6 to 12 mm offered in 1 mm increments. Each diameter designation has three different lengths of cut from 1.5 to 3XD to ensure manufacturers can optimise their performance when machining in unstable conditions or accessing parts with difficult-to-reach surfaces. Depending upon the diameter selected, the CEHS is available with a shank diameter from 4 to 12 mm with an overall length from 50 to 100 mm.

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